ssl_connect_example/main21.c File Reference

SSL Example.

Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.

#include "asf.h"
#include "main.h"
#include "driver/include/m2m_wifi.h"
#include "socket/include/socket.h"

Macros
#define	STRING_EOL   "\r\n"
#define	STRING_HEADER

Functions
static void	configure_console (void)
	Configure UART console. More...
int	main (void)
	Main application function. More...
static void	resolve_cb (uint8_t *hostName, uint32_t hostIp)
	Callback function of IP address. More...
static void	socket_cb (SOCKET sock, uint8_t u8Msg, void *pvMsg)
	Callback function of TCP client socket. More...
static int8_t	sslConnect (void)
	Creates and connects to an unsecure socket to be used for SSL. More...
static void	wifi_cb (uint8_t u8MsgType, void *pvMsg)
	Callback to get the Wi-Fi status update. More...

Variables
static struct usart_module	cdc_uart_module
	UART module for debug. More...
static bool	gbConnectedWifi = false
	Wi-Fi status variable. More...
static bool	gbHostIpByName = false
	Get host IP status variable. More...
uint32_t	gu32HostIp = 0
	IP address of host. More...
uint8_t	gu8SocketStatus = SocketInit
static SOCKET	tcp_client_socket = -1
	TCP client socket handler. More...

#define STRING_EOL   "\r\n"

#define STRING_HEADER

Value:

"-- SSL example --"STRING_EOL \
    "-- "BOARD_NAME " --"STRING_EOL \
    "-- Compiled: "__DATE__ " "__TIME__ " --"STRING_EOL

Referenced by main().

static void configure_console ( void  )

static

Configure UART console.

References usart_config::baudrate, cdc_uart_module, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, usart_enable(), and usart_get_config_defaults().

Referenced by main().

int main

(

void

)

Main application function.

Application entry point.

Returns

program return value.

References configure_console(), gbConnectedWifi, gbHostIpByName, gu8SocketStatus, M2M_SUCCESS, M2M_WIFI_CH_ALL, m2m_wifi_connect(), m2m_wifi_handle_events(), m2m_wifi_init(), MAIN_WLAN_AUTH, MAIN_WLAN_PSK, MAIN_WLAN_SSID, nm_bsp_init(), NULL, tstrWifiInitParam::pfAppWifiCb, registerSocketCallback(), resolve_cb(), SOCK_ERR_NO_ERROR, socket_cb(), SocketInit, socketInit(), SocketWaiting, sslConnect(), STRING_HEADER, system_init(), tcp_client_socket, and wifi_cb().

static void resolve_cb ( uint8_t *  hostName, uint32_t  hostIp  )

static

Callback function of IP address.

Parameters

[in]	hostName	Domain name.
[in]	hostIp	Server IP.

Returns

None.

References gbHostIpByName, gu32HostIp, and IPV4_BYTE.

Referenced by main().

static void socket_cb ( SOCKET  sock, uint8_t  u8Msg, void *  pvMsg  )

static

Callback function of TCP client socket.

Parameters

[in]	sock	socket handler.
[in]	u8Msg	Type of Socket notification
[in]	pvMsg	A structure contains notification informations.

Returns

None.

References gu8SocketStatus, tstrSocketConnectMsg::s8Error, SOCK_ERR_NO_ERROR, SOCKET_MSG_CONNECT, SocketError, and tcp_client_socket.

Referenced by main().

static int8_t sslConnect ( void  )

static

Creates and connects to an unsecure socket to be used for SSL.

Parameters

[in]

None.

Returns

SOCK_ERR_NO_ERROR if success, -1 if socket create error, SOCK_ERR_INVALID if socket connect error.

References _htons, AF_INET, close(), connect(), gu32HostIp, MAIN_HOST_PORT, in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_port, SOCK_ERR_INVALID, SOCK_ERR_NO_ERROR, SOCK_STREAM, socket(), SOCKET_FLAGS_SSL, and tcp_client_socket.

Referenced by main().

static void wifi_cb ( uint8_t  u8MsgType, void *  pvMsg  )

static

Callback to get the Wi-Fi status update.

Parameters

[in]	u8MsgType	type of Wi-Fi notification. Possible types are: M2M_WIFI_RESP_CON_STATE_CHANGED M2M_WIFI_REQ_DHCP_CONF
[in]	pvMsg	A pointer to a buffer containing the notification parameters (if any). It should be casted to the correct data type corresponding to the notification type.

References gbConnectedWifi, gbHostIpByName, gethostbyname(), M2M_WIFI_CH_ALL, m2m_wifi_connect(), M2M_WIFI_CONNECTED, M2M_WIFI_DISCONNECTED, M2M_WIFI_REQ_DHCP_CONF, m2m_wifi_request_dhcp_client(), M2M_WIFI_RESP_CON_STATE_CHANGED, MAIN_HOST_NAME, MAIN_WLAN_AUTH, MAIN_WLAN_PSK, MAIN_WLAN_SSID, and tstrM2mWifiStateChanged::u8CurrState.

Referenced by main().

struct usart_module cdc_uart_module

static

UART module for debug.

bool gbConnectedWifi = false

static

Wi-Fi status variable.

Referenced by main(), and wifi_cb().

bool gbHostIpByName = false

static

Get host IP status variable.

Referenced by main(), resolve_cb(), and wifi_cb().

uint32_t gu32HostIp = 0

IP address of host.

Referenced by main(), resolve_cb(), smtpConnect(), and sslConnect().

uint8_t gu8SocketStatus = SocketInit

Referenced by main(), retry_smtp_server(), and socket_cb().

SOCKET tcp_client_socket = -1

static

TCP client socket handler.

Referenced by main(), socket_cb(), and sslConnect().